JP2019084059A - Main rope holding tool and main rope installation method - Google Patents

Abstract

To enable a main rope for holding a life rope or the like to readily be installed to a roof, in a main rope holding tool used for preventing a worker from falling from a roof, and a main rope installation method.SOLUTION: A main rope holding tool 1 can install a main rope 5 to a roof 4 readily by devising a shape of the main rope holding tool for holding the main rope 5. The main rope holding tool 1 includes: a part to be held which is used for the roof 4 formed by a roof material 40 fixed by a fixture 50 and held to the fixture 50; and a holding part for holding the main rope 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a parent rope holder and a parent rope installation method used for the purpose of preventing a worker from falling on a roof.

  Generally, in inspection of roof, repair work, installation of a television antenna, etc., a lifeline is attached for the purpose of a worker's fall prevention. When attaching the life rope, first, install a parent rope in a building, and then connect one end of the life rope to the parent rope and attach the other end to the waist or the like of the worker. Thus, the lifeline is connected to the building through the parent line. Therefore, in order to prevent the worker from falling down, it is extremely important that the parent rope be firmly fixed to the building.

  As a conventional parent rope installation method, for example, prepare a parent rope with hook fittings attached to both ends, and lock the hook fittings to the eaves tip on both sides of the ridge, respectively. There is a way to stretch across the eaves on the side.

  As another method, there is a method of using a weight bucket instead of the hook fitting. The weight bucket mainly includes a container for storing water and a connecting portion connected to one end of the parent rope. When using this weight bucket, first, a hook fitting provided at one end of the main rope is fixed to the eaves. Next, a weight bucket storing water is placed on the ground on the eave side opposite to the eaves point to which the hook fitting is fixed, and the other end of the main rope is connected to the connection portion of this weight bucket. As a result, both ends of the parent rope are fixed to the eaves and the ground on the eaves side opposite thereto, and the parent rope extends in the direction of the eaves and is firmly installed along the roof.

  However, in the above-described method of installing the main rope using the hook fitting and the weight bucket, since the hook fitting must be attached to the eaves end, the work is time-consuming and dangerous. Therefore, the following parent rule setting methods have also been proposed.

  In Patent Document 1, a pair of safety fittings are spaced apart in the ridge direction, and screws and the like are driven in and fixed to the ridge wrap, and one end of the main rope is fastened to one safety fitting and the other end is the other There is disclosed a method of stretching a parent rope so as to extend in the ridge direction by fastening it to a safety fitting.

  Further, Patent Document 2 discloses a method of attaching a safety fitting on a roof material so as to sandwich the top of the ridge in the ridge. When securing the safety fitting, cover the roof with a lumber, and insert fasteners such as screws and nails. In this method, the safety fitting is hidden by the ridge cover, so the appearance of the roof is not impaired. In addition, it is possible to reduce the work that may cause a fall, without the need for removing the safety fitting.

JP 2005-336990 A JP, 2006-257679, A

  In the parent rope installation method disclosed in Patent Literatures 1 and 2, it is necessary to wrap the safety fitting into a ridge, insert a fixing tool such as a screw or the like into a blank board or a purlin, and fix it. Therefore, there is a problem that the installation of the safety fitting takes time and requires permission from the client.

  Furthermore, there is also a problem that it is difficult to use a single-flow roof with either a hook fitting and a parent rope installation method using a weight bucket and the parent rope installation method disclosed in Patent Documents 1 and 2.

  The present invention is made in view of the above-mentioned point, and it aims at making easy to install parent rope for holding life rope etc. on a roof.

  In order to achieve the above object, the present invention devises the shape of a parent rope holder for holding parent rope so that the parent rope can be easily installed on the roof.

  Specifically, a parent leash holder according to an embodiment of the present invention is used for a roof formed of a roof material fixed by a fixing member, and a held portion held by the fixing member, and a parent leash And a holding unit for holding the

  According to the present invention, by holding the holding portion on the fixing member for fixing the roof material and then holding the parent rope on the holding part, the parent rope can be installed on the roof more easily than in the related art.

FIG. 1: is a perspective view which shows typically a part of roof in which parent rope was installed by the parent rope retainer which concerns on this embodiment. FIG. 2 is a cross-sectional view taken along line AA of FIG. FIG. 3: is a perspective view which expands and shows typically a part of roof in which parent rope was installed by the parent rope retainer which concerns on this embodiment. FIG. 4 is a plan view showing a parent rope holder according to the present embodiment.

  Hereinafter, embodiments of the present invention will be described based on the drawings. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the present invention, its applications, or its applications. Further, an arrow X in the drawing indicates an eave direction. An arrow Y indicates an eaves direction orthogonal to the eaves direction X. The Y1 direction of the arrow Y indicates the ridge side, and the Y2 direction indicates the eaves side. Arrow L indicates the longitudinal direction, and arrow S indicates the lateral direction. The L1 direction of the arrow L is upward, and the L2 direction is downward.

  First, a roof to which the parent rope retainer according to the present embodiment can be applied will be described. FIG. 1: is a perspective view which shows typically a part of roof 4 in which parent rope 5 was installed by parent rope retainer 1 which concerns on this embodiment. FIG. 2 is a cross-sectional view taken along line AA of FIG. The parent rope retainer 1 is used for the roof 4 formed of the roof material 40 fixed with the fixing tool 50, as shown in FIG.

  The type of the roof 4 is not particularly limited, and may be, for example, a gable roof, a roving roof, a half-flow roof, or the like. When the roof 4 is a single-flow roof, the direction along the slope of the roof is the eaves ridge direction Y, the eaves side in the eaves ridge direction Y is the Y2 direction, and the Y1 direction opposite to the Y2 direction is a ridge Define as the side.

  In the present embodiment, a plurality of roofing materials 40 are installed adjacent to each other in the direction of the eaves on the roof 4 so that parts thereof overlap each other and are formed in a step-like manner. That is, as shown in FIGS. 1 and 2, a part of the roofing material 40c located on the ridge side overlaps a part of the top surface of the roofing material 40b located on the eaves side, and a part of the roofing material 40b is further It overlaps with a part of the upper surface of the roof material 40a located on the eaves side. Thus, the roof materials 40 adjacent to each other partially overlap each other, and a plurality of roof materials 40 are applied in the direction of the eaves.

  In the present embodiment, as shown in FIG. 1, each roofing material 40 is configured of a plurality of roof members 41 arranged in close proximity in the eaves direction. The type of the roof member 41 is not particularly limited, and may be a slate material, a tile, a metal-based roof material, or the like. The roof member 41 may be made of, for example, a substantially rectangular plate-like slate made of a ceramic-based hydraulic material. In the present embodiment, the roofing material 40 is configured of a plurality of roof members 41, but is not limited thereto, and may be configured of, for example, one roof member.

  Each roofing material 40 is fixed by a fixture 50. In the present embodiment, each roof member 41 is fixed by the fixing tool 50. Although the kind of fixing tool 50 is not specifically limited, For example, a nail, a screw, a screw, etc. can be used.

  In the present embodiment, as described above, since the plurality of roofing materials 40 are applied in a step-like manner, the fixture 50 is concealed by the roofing material 40. As shown in FIG. 2, the fixture 50a for fixing the roofing material 40b is concealed by a part of the roofing material 40c overlapping the roofing material 40b.

  Next, a parent rope holder 1 according to the present embodiment will be described. FIG. 4 is a plan view showing a parent rope retainer 1 according to the present embodiment. The parent rope holder 1 includes a held portion 10 held by the fixture 50 and a holder 20 that holds the parent rope 5. When this parent leash retainer 1 is used, the holding member 10 is held by the fixing member 50 for fixing the roof material 40, and then the parent leash 5 is held by the holding member 20, whereby the parent leash 5 is fixed to the roof 4. It can be installed. Therefore, the work process for installing the parent rope 5 is reduced, and the parent rope 5 can be installed more easily than in the past.

  The configuration and shape of the holding portion 20 are not particularly limited as long as the parent rope 5 can be held. In the present embodiment, as shown in FIG. 4, the holding portion 20 is provided with the hole 21 for holding the parent 5, but the present invention is not limited to this. For example, the holder 20 may be provided with a fitting or the like for holding the parent 5. However, from the viewpoint of facilitating the production of the parent rope retainer 1 and from the viewpoint of workability when the parent rope 5 is held by the holder 20, the holes 21 for holding the parent rope 5 in the holder 20 are provided. Is preferred.

  The size of the hole 21 formed in the holding portion 20 is not particularly limited, as long as the parent rope 5 can be held. As shown in FIG. 1, when the parent rope 5 is held via the bracket 51 such as a carabiner or the like, the size of the hole 21 may be appropriately set depending on the thickness of the bracket 51. The holes 21 do not have to be circular, and may be, for example, oval, triangle, square or the like. The holes 21 preferably have a substantially circular shape with a diameter of, for example, about 30 mm.

  The configuration and shape of the held portion 10 are not particularly limited, as long as they can be held by the fixture 50. It is preferable that the held portion 10 be hooked and held by the fixture 50. That is, the held portion 10 preferably has a structure that can be hooked on the fixture 50. In this case, since the held portion 10 can be held by hooking the held portion 10 to the fixture 50 that fixes the roof material 40, the parent leash holder 1 can be easily installed on the roof 4 .

  In the present embodiment, as shown in FIG. 4, the holding portion 10 is formed with a notch 11 that opens laterally. The side includes a direction of 0 to 45 degrees downward from the short side direction. That is, the angle θ between the opening 110 of the notch 11 and the short direction is 0 to 45 °. In the present embodiment, as shown in FIG. 4, the notch 11 that opens in the direction of 45 ° downward from the short side direction is formed. That is, in FIG. 4, θ is 45 °. However, the orientation of the opening 110 of the notch 11 is not limited to this, and the notch 11 may be, for example, open in the lateral direction, and opens in the direction of 60 ° C. from the lateral direction downward. It may be By forming the notch 11 open to the side of the held portion 10, the fixing member 50 is introduced into the notch 11 from the opening 110 of the notch 11, whereby the held portion 10 is fixed to the fixing member 50. Can be hooked and held, so the parent rope holder 1 can be easily installed on the roof 4.

  The shape of the notch 11 is not particularly limited except that it has an opening 110 at the side. In the present embodiment, as shown in FIG. 4, the notch 11 is cut obliquely upward from the opening 110 to the middle portion in the lateral direction of the held portion 10, and the fixing portion is further longitudinally upward. It is cut out straight to 111. Since the fixing tool 50 becomes difficult to move from the fixing part 111 of the notch 11 when the fixing tool 50 is hooked to the holding part 10 because the notch 11 has such a shape, the holding part 10 is fixed. It becomes difficult to remove from the tool 50. Further, in the present embodiment, the notch 11 is cut out with a constant width from the opening 110 to the fixing portion 111, but may be cut out so that the width becomes narrower from the opening 110 toward the fixing portion 111 . The width of the notch 11 can be appropriately designed in accordance with the size of the fixing device 50 so that the fixing device 50 can be smoothly introduced into the fixing portion 111.

  The main rope holder 1 may further include a connecting portion 30 that connects the held portion 10 and the holding portion 20. In this case, it is preferable that the opening 110 of the notch 11 be located more laterally than the connecting portion 30. That is, it is preferable that the upper opening edge 110a in the opening 110 of the notch 11 protrudes outward in the shorter direction than the lower opening edge 110b. In this case, by sliding the edge 30a on the opening 110 side in the short direction of the connecting portion 30 along the fixture 50, the opening edge 110a of the notch 11 abuts on the fixture 50, and the fixture 50 becomes the opening 110 It becomes easy to align. Therefore, introduction of the fixing tool 50 to the fixing portion 111 is facilitated. For this reason, even when the fixture 50 is hidden by the roof material 40 and can not be visually recognized as described above, the held portion 10 can be easily held by the fixture 50, and the parent rope retainer 1 can be easily roofed 4. It can be installed on

  In the present embodiment, as shown in FIG. 4, the held portion 10, the coupling portion 30, and the holding portion 20 are integrally provided, but the held portion 10, the coupling portion 30, and the holding portion 20 are different. You may be comprised from the member. However, it is preferable that the holding portion 10, the connecting portion 30, and the holding portion 20 be integrally provided from the viewpoint of simplifying the configuration of the parent rope holder 1 and facilitating the manufacture.

  It is preferable that a mark 31 indicating the opening direction of the notch 11 is formed in the connecting portion 30 or the holding portion 20. In the present embodiment, as shown in FIG. 4, a mark 31 composed of a figure and a character is formed in the holding unit 20. The mark 31 may be formed in the connecting portion 30. Moreover, the mark 31 may consist only of a figure, and may consist of only a character. The mark 31 may be formed by printing, engraving or the like directly on the main rope holder 1. Further, the mark 31 may be formed separately from the parent leash holder 1 and may be provided on the connection portion 30 or the holding portion 20 by adhesion or the like. The mark 31 is not particularly limited as long as the opening direction of the notch 11 can be confirmed by visual observation or touch. As will be described later, when the parent rope retainer 1 is inserted between the roof members 40a and 40b and used, the held portion 10 in which the notch 11 is formed is concealed by the roof member 40b. When the tool 1 is installed on the roof 4, the opening direction of the notch 11 can not be confirmed. As described above, even when the opening 110 of the notch 11 can not be viewed directly, the opening direction can be known because the mark 31 is formed.

  In FIG. 4, the mark 31 formed on one surface of the main rope holder 1 is illustrated, but a mark indicating the opening direction of the notch 11 is also formed on the surface opposite to this surface There is. That is, in the present embodiment, the marks 31 are formed on both sides of the main rope holder 1. By forming the marks 31 on both sides of the parent leash holder 1, it is possible to easily check the opening direction of the notch 11 even when the parent leash holder 1 is used with either side as the upper surface. . The mark 31 may be formed only on one side of the main rope holder 1, but is preferably formed on both sides.

  In the connecting portion 30, the held portion 10 is inserted between the roofing members 40a and 40b adjacent in the eaves direction, and is held by the fixing tool 50 for fixing the roofing member 40b on the eaves side. It is preferable that the mark 32 which shows the position of the eaves side edge 401b of the roof material 40b by the ridge side is formed in the state which was concealed by the roof material 40b by the ridge side. As shown in FIG. 1, in the present embodiment, the parent leash holder 1 is inserted between the roofing materials 40 a and 40 b, and is held by hooking a fixture 50 that fixes the roofing material 40 b in the notch 11. At this time, since the held portion 10 in which the notch 11 is formed is concealed by the roof material 40 b, it can not be visually recognized whether or not the notch 11 is properly hooked on the fixture 50. However, in the state where the notch 11 is caught by the fixing tool 50, the mark 32 is formed to indicate where the position of the eaves side edge 401b of the roof material 40b overlapping the parent leash holder 1 should be. 32 and the position of the eaves side edge 401b make it possible to confirm that the notch 11 is properly hooked and held in the fixture 50. Therefore, the parent rope retainer 1 can be firmly installed on the roof 4, and the parent rope 5 can be installed on the roof 4 with high reliability.

  In the present embodiment, as shown in FIG. 4, the marks 32 are composed of figures and characters. The mark 32 may be composed of only a figure or may be composed of only a character. The marks 32 may be formed directly on the connecting portion 30 by printing, engraving or the like. In addition, the mark 32 may be formed separately from the connecting portion 30 and may be provided on the connecting portion 30 by adhesion or the like. The mark 32 is not particularly limited as long as the position of the eaves side edge 401b of the roof material 40b can be confirmed by visual observation or touch.

  In FIG. 4, the mark 32 formed on one surface of the parent rope holder 1 is illustrated, but the position of the eaves side edge 401b of the roof material 40b on the ridge side is also shown on the surface opposite to this surface. Marks to indicate are formed. That is, in the present embodiment, the marks 32 are formed on both sides of the main rope holder 1. Since the marks 32 are formed on both sides of the parent rope holder 1, the position of the eaves side edge 401b of the roof material 40b can be easily confirmed regardless of which side is used as the top surface and the parent rope holder 1 is used. be able to. The mark 32 may be formed only on one side of the main rope holder 1, but is preferably formed on both sides.

  In the present embodiment, as shown in FIG. 4, the width in the lateral direction of the connecting portion 30 is smaller than the widths of the held portion 10 and the holding portion 20. The width of the connecting portion 30 may be the same as the width of the held portion 10 and the holding portion 20, or may be larger than the width of the held portion 10 and the holding portion 20.

  The length in the longitudinal direction of the main rope holder 1 is not particularly limited. As mentioned above, when inserting and using between the roofing materials 40a and 40b, the length of the main rope holder 1 may be appropriately set so that the holding portion 20 is exposed without being hidden by the roofing material 40b.

  The thickness of the parent rope holder 1 is not particularly limited. As described above, when the parent rope retainer 1 is used by being inserted between the roofing members 40, the thickness of the parent rope retainer 1 can be appropriately set so as to be able to be inserted between the roof members 40. The thickness of the main rope holder 1 may be, for example, in the range of 1.6 to 2.4 mm.

  It is preferable that the main rope holder 1 be made of metal. The main rope holder 1 may be made of, for example, stainless steel.

  Next, the method of installing the parent rope 5 on the roof 4 will be described in detail. FIG. 3: is a perspective view which expands and shows typically a part of roof 4 in which parent rope 5 was installed by parent rope retainer 1 which concerns on this embodiment.

  The parent rope 5 is installed on the roof 4 using at least two parent rope retainers 1. In the present embodiment, as shown in FIG. 1, the parent ropes 5 are installed on the roof 4 using four parent rope holders 1, but the number of parent rope holders 1 is two or more. There is no particular limitation, and two or three may be used. However, in order to install the parent rope 5 with high reliability, it is preferable to use three or more parent rope holders 1, and it is particularly preferable to use four or more parent rope holders 1.

  First, the held portion 10 of the first parent rope holder 1a is held by the fixing tool 50a as follows. The first parent rope retainer 1a is inserted between the roofing material 40a and the roofing material 40b. Then, the edge 30a on the opening 110 side in the short direction of the connection portion 30 of the first parent rope holder 1a is slid along the fixture 50a, and the fixture 50a is introduced into the notch 11. Thereby, the fixing tool 50a reaches the fixing portion 111, and the held portion 10 of the parent leash holder 1a is held by the fixing tool 50a.

  When inserting the parent leash retainer 1 between the roof members 40, the roof leash 40b on the ridge side may be slightly lifted and the parent leash retainer 1 may be inserted between the roof members 40a and 40b. The parent rope holder 1 may be inserted after securing a gap between the roofing material 40a and the roofing material 40b.

  Next, the held portion 10 of the second parent rope retainer 1c is held by the fixture 50c different from the fixture 50a. The second parent rope retainer 1c may be held by the fixture 50c in the same manner as the first parent rope retainer 1a.

  Similarly, the held portion 10 of the third parent rope holder 1b is held by a fixture 50b different from the fixture 50c. In the present embodiment, as shown in FIG. 1, the held portion 10 of the third parent leash holder 1b is compared with the held portions 10 of the first parent leash holder 1a and the second parent leash holder 1c. The fixtures 50a and the fixtures 50c are held by fixtures 50b different from each other. However, the present invention is not limited to this, and the held portion 10 of the third parent rope holder 1b may be held by the fixture 50a.

  In the third parent rope retainer 1b, the openings 110 of the notch 11 of the third parent rope retainer 1b face each other with the openings 110 of the notch 11 of the first parent rope holder 1a, or opposite to each other It is preferable to arrange so as to face. In the present embodiment, as shown in FIG. 3, the opening 110 of the first parent rope holder 1 a and the opening 110 of the third parent rope holder 1 b face each other. That is, the side provided with the opening 110 in the lateral direction of the first parent rope holder 1a and the side provided with the opening 110 in the lateral direction of the third parent rope holder 1b face each other It is arranged as. Therefore, for example, even if the first parent rope retainer 1a moves in the direction away from the fixture 50a, the third parent rope retainer 1b moves in the direction in which the third parent rope retainer 1b is less likely to separate from the fixture 50b. Thus, the parent rope 5 can be installed on the roof 4 with high reliability. Of course, the two parent rope holders 1a and 1b may be arranged such that the opening 110 of the first parent rope holder 1a and the opening 110 of the third parent rope holder 1b face the opposite side. . Even in this case, even if one parent leash holder 1 moves in the direction of disengaging from the fixture 50, the other parent leash retainer 1 moves in the direction that does not easily separate from the fixture 50. It can be installed on the roof 4.

  When installing the third parent rope retainer 1b, reverse the parent rope retainer 1 similar to that used as the first parent rope retainer 1a and use it as the third parent rope retainer 1b. The opening 110 of the first parent rope holder 1a and the opening 110 of the third parent rope holder 1b can be easily arranged so as to face each other or to face each other.

  Further, in the present embodiment, a mark 31 indicating the opening direction of the notch 11 is formed in the parent rope holder 1. Therefore, after the first parent leash holder 1a is held by the fixing tool 50a, the first parent parent by the mark 31 even if the notch 11 of the first parent leash holder 1a is concealed by the roof material 40b. The opening direction of the notch 11 of the rope holder 1a can be known. Therefore, the third parent leash holder 1b is disposed such that the openings 110 of the third parent leash holder 1b face each other with the openings 110 of the first parent leash holder 1a or face each other. It becomes easy. As described above, even when the opening 110 of the notch 11 can not be viewed directly, the opening direction can be known because the mark 31 is formed.

  Next, the held portion 10 of the fourth parent rope holder 1 d is held by the fixing tool 50 d different from the fixing tool 50 a and the fixing tool 50 b. In the present embodiment, as shown in FIG. 1, the held portion 10 of the fourth parent leash holder 1 d includes the first parent leash holder 1 a, the second parent leash holder 1 c, and the third parent. The fixture 50a holding the held portion 10 of the rope holder 1b, the fixture 50c, and the fixture 50b are held by fixtures 50d different from each other. However, the present invention is not limited to this, and the held portion 10 of the fourth parent rope holder 1 d may be held by the fixture 50 c.

  As described above, in the fourth parent rope holder 1d, the opening 110 of the notch 11 of the fourth parent rope holder 1d is the opening of the notch 11 of the second parent rope holder 1c. It is preferable to arrange 110 so as to face each other or to face each other. In the present embodiment, the openings 110 of the notches 11 of the fourth parent rope holder 1 d are arranged to face the openings 110 of the notches 11 of the second parent rope holder 1 c.

  Subsequently, a part of the parent rope 5 is held by the holding portion 20 of the first parent rope holder 1a and the holding portion 20 of the third parent rope holder 1b. In the present embodiment, the main rope 5 has fittings 51a and 51b at both ends. The parent rope 5 is held by passing the metal fitting 51a provided at one end of the parent rope 5 through the hole 21 provided in the holding portion 20 of the first parent rope retainer 1a and the third parent rope retainer 1b. It can be done. First, as shown in FIG. 3, the hole 21 provided in the holding portion 20 of the first parent leash holder 1 a and the hole 21 provided in the holding portion 20 of the third parent leash holder 1 b The first parent rope holder 1a and the third parent rope holder 1b are arranged to overlap. In FIG. 3, the first parent rope holder 1a is overlapped on the third parent rope holder 1b, but the third parent rope holder 1b is overlapped on the first parent rope holder 1a. It is also good. Then, as shown in FIG. 1, the metal fitting 51a is passed through the hole 21 of the overlapped first parent leash holder 1a and the hole 21 of the third parent leash holder 1b. Thereby, the holding portion 20 of the first parent leash holder 1a and the holding portion 20 of the third parent leash holder 1b are connected by the metal fitting 51a, and one end of the parent leash 5 is the first parent leash holder It is held by 1a and the third parent rope holder 1b.

  Similarly, the other part of the parent rope 5 is held by the holding part 20 of the second parent rope holder 1 c and the holding part 20 of the fourth parent rope holder 1 d. In this embodiment, the metal fitting 51b provided at the other end of the parent rope 5 is passed through the hole 21 provided in the holding portion 20 of the second parent leash holder 1c and the fourth parent leash holder 1d. , Can hold the parent 5.

  As described above, the parent rope 5 can be installed on the roof 4.

  The order of steps in installing the parent 5 is not limited to the above. For example, after installing the first parent rope retainer 1a and the third parent rope retainer 1b, a part of the parent rope 5 is attached to the first parent rope retainer 1a and the third parent rope retainer 1b. Then hold the second parent rope holder 1c and the fourth parent rope holder 1d, and attach the other part of the parent rope 5 to the second parent rope holder 1c and the fourth parent rope holder 1d. You may hold it.

  In the case where two parent rope holders 1 are used to set the parent rope 5, for example, the first parent rope holder 1a and the second parent rope holder 1c may be used.

  The kind of parent rope 5 is not specifically limited, For example, the rope which consists of synthetic fibers, the rope which consists of natural fibers, the rope which consists of metals, etc. can be used.

  The length of the main rope 5 is not particularly limited, and may be appropriately adjusted according to the working range when working on the roof 4. For example, the length of parent 5 may be in the range of 50 to 200 cm. However, in the case where the roofing material 40 of the roof 4 is constituted by a plurality of roof members 41, the length of the parent rope 5 is approximately equal to two minutes from one roof member 41 from the viewpoint of installing the parent rope 5 with high reliability. Preferably the length of By adjusting the place where the parent rope retainer 1 is installed, the parent rope 5 of any length can be installed. When the work range is wide, two or more parent ropes may be installed on the roof 4. In that case, since the worker can move on the roof 4 by changing the life rope from one parent rope to the other parent rope, a wide working range can be secured.

  The parent rope 5 is preferably installed substantially parallel to the eaves direction, but is not limited thereto. For example, the first parent rope retainer 1a and the third parent rope retainer 1b are inserted between the roofing material 40a and the roofing material 40b and held by the fixture 50 for fixing the roofing material 40b. The parent rope retainer 1c and the fourth parent rope retainer 1d may be inserted between the roofing 40b and the roofing 40c and held by a fixture (not shown) that fixes the roofing 40c. In this case, the parent rope 5 is installed obliquely to the eaves direction.

  In the above embodiment, the holes 21 are round holes, but it is preferable that the holes 21 be elongated in the direction in which the notches 11 extend (longitudinal direction of the main rope holder 1). Thereby, even if the metal fitting 51 of the parent rope 5 moves to the ridge side as the worker moves to the ridge side, the metal fitting 51 only moves within the hole 21, and the parent rope retainer 1 The whole does not move to the ridge side. Therefore, the fixing tool 50 does not move in the notch 11, and it becomes possible to prevent the fixing tool 50 from coming off the notch 11.

  As explained above, the parent rope retainer and parent rope installation method according to the present invention can be applied to applications where parent ropes for holding life ropes and the like are easily installed on a roof.

DESCRIPTION OF SYMBOLS 1 parent rope retainer 10 held part 11 notch 20 holder 30 connection part 31 mark 32 mark 4 roof 40 roof material 5 parent rope 50 fixture

Claims (8)

A parent rope retainer used for a roof formed by a roofing material fixed by fixtures, comprising:
A held part held by the fixture;
And a holding unit for holding a parent rope. The parent rope holder according to claim 1, wherein the held portion is hooked and held by the fixture. The parent leash retainer according to claim 2, wherein a notch that opens laterally is formed in the held portion. It further comprises a connecting part that connects the held part and the holding part,
The parent leash retainer according to claim 3, wherein the opening of the notch is located lateral to the connecting portion.   The parent leash holder according to claim 4, wherein a mark indicating an opening direction of the notch is formed on the connection portion or the holding portion. On the roof, a plurality of the roofing materials are installed in a step-like manner by partially overlapping each other in the direction of the eaves.
In the connecting part, the held part is inserted between the roofing materials adjacent in the eaves building direction and held by a fixing tool for fixing the roofing material on the building side, and a part of the connecting part is the ridge The parent rope retainer according to claim 4 or 5, wherein a mark indicating the position of the eaves side edge of the roof material on the ridge side is formed in a state of being concealed by the roof material on the side. A parent rope installation method for installing the parent rope on the roof using at least two parent rope holders according to any one of claims 1 to 6,
Holding the held portion of the first parent rope retainer on the fixture;
Holding the held portion of the second parent rope retainer on a fixture different from the fixture;
Causing a portion of the parent rope to be held by the holding portion of the first parent rope holder and holding the other portion of the parent rope in the holding portion of the second parent rope holder Installation method. Holding the held portion of the third parent rope retainer on a fixture different from the other fixture;
And allowing the holding portion of the third parent rope retainer to hold the part of the parent rope.
In the held portion of the first parent rope holder and the held portion of the third parent rope holder, notches opened laterally are formed,
In the third parent rope retainer, the openings of the notches of the third parent rope retainer face each other or the opposite sides of the openings of the first parent rope retainer. The parent rope setting method according to claim 7, wherein the parent rope is arranged.

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